US1959556A - Manufacture of rubber articles - Google Patents
Manufacture of rubber articles Download PDFInfo
- Publication number
- US1959556A US1959556A US638185A US63818532A US1959556A US 1959556 A US1959556 A US 1959556A US 638185 A US638185 A US 638185A US 63818532 A US63818532 A US 63818532A US 1959556 A US1959556 A US 1959556A
- Authority
- US
- United States
- Prior art keywords
- rubber
- manufacture
- former
- articles
- rubber articles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 title description 17
- 239000005060 rubber Substances 0.000 title description 17
- 238000004519 manufacturing process Methods 0.000 title description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 15
- 239000006185 dispersion Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 235000011187 glycerol Nutrition 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- -1 for example Proteins 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000010499 rapseed oil Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/02—Direct processing of dispersions, e.g. latex, to articles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
Definitions
- the invention relates more particularly to the Where a former is used, it can be internally o0 formation of thin deposits of rubber. heated during the immersion in the aqueous dis- In the production of thin rubber articles it is persion, or subsequent thereto, or both during usually extremely difiicult to produce a thin immersion and subsequently thereto.
- Articles of walled article free from bubbles which cause deappreciable thickness may be made by successive fects in the finished article, and to produce an thinner coatings.
- the various coating compositions may be apness.
- rubber is 0d of forming rubber articles from aqueous dis used in its broadest significance as including natpersions in which bubbles in the deposited rubber ural or artificial aqueous dispersions of India rubmaterial may be readily avoided, and in which her, or similar vegetable resins such as gutta uniformity in wall thickness and structure may percha or balata with or without the addition of 7 b obtained, aqueous dispersions or emulsions of rubber-like
- the surface on which the desubstances such as synthetic rubbers, mineral posit of rubber material is to be made is first rubbers or rubber substitutes such as factice or coated with a non-coagulating composition comrubber reclaim, or rubber waste or oils, for exprising one or more polyhydroxy compounds, or ample, rape oil or vulcanized oils or cellulose other derivatives, in admixture with a volatile esters or proteins, for example, casein.
- the aqueous dispersion is then brought persions may be concentrated or compounded, or into contact with the thus treated surface to coat both compounded and concentrated.
- a comthe latter and the deposit or coating thus formed pounded concentrate such as described in Patent 30 i thereafter l t d, 1,846,164 is suitable.
- the polyhydroxy compounds used in coating ents may comprise vulcanizing agents such as the surface are such as have a slight stabilizing Sulphur, Organic c l ators and reinforcing action on the dispersion.
- gas a k,'zi nc oxide or 35 ethylene glycol or alkyl ethers of these, such as 9 Vulcamte, colormg matters glycol monoethyl ether, are examples of suitable preservatlves Softeners;- polyhydroxy compounds, An example of carrying the invention into These polyhydroxy compounds may bemixed efiect is as follows:
- a non-coagulating composition suitable for the h h y P used according to the present production of thin rubber dipped goods from invention is a mixture of glycerme and alcohol.
- rubber latex Such as finger cots, can be made as The glycerine appears to facilitate wetting by follows;
- the former with the liquid film of latex mixing is then removed from the bath. On withdrawal the former is rotated so as to obviate variations in thickness of deposit, and is then carefully inverted and placed over'a jet of steam so that the former is internally heated.
- the dried deposit is then suitably treated in any known manner, e. g., vulcanized in steam for ten minutes at 15 lbs. pressure per square inch.
- a method for the production of articles from aqueous dispersions of rubber which comprises coating a supporting surface with a non-coagulating composition comprising polyhydroxy organic compounds in admixture with a volatile solvent, evaporating solvent from said coating, coating the thus treated supports with an aqueous dispersion of rubber, and coagulating the coating.
- noncoagulating composition is a mixture of glycerine and alcohol.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Moulding By Coating Moulds (AREA)
Description
UNITED STATES PATENT OFFICE 1,959,556 MANUFACTURE OF RUBBER ARTICLES Geoffrey William Trobridge, Sutton Coldfield, England, assignor to Dunlop Rubber Company Limited, London, England, a British company No Drawing. Application October 17, 1932, Serial No. 638,185. In Great Britain November 26, 1931 Claims. (Cl. 18-58) My invention relates to improvements in the thesupports or backing strata can be effected by manufacture of articles of rubber or similar mathe application of heat, or by the application of terial by forming deposits thereof from suitable coagulants, or by dehydrating and setting means, aqueous dispersions on supports or backing strata. or by combinations of these various means.
5 The invention relates more particularly to the Where a former is used, it can be internally o0 formation of thin deposits of rubber. heated during the immersion in the aqueous dis- In the production of thin rubber articles it is persion, or subsequent thereto, or both during usually extremely difiicult to produce a thin immersion and subsequently thereto. Articles of walled article free from bubbles which cause deappreciable thickness may be made by successive fects in the finished article, and to produce an thinner coatings. 65 article of the desired uniformity of wall thick- The various coating compositions may be apness. The production of thin walled articles plied in any of the usual operations such as dipfi'om aqueous dispersions is also rendered more ping, pouring, spreading or spraying, and the difiicult in many cases because it is not practicable supporting surface or former may be of various in such cases to use a coagulant. materials such as glass, metal, porcelain, hard or m An object of my invention is to provide a methsoft rubber, clay or fabric. The term rubber is 0d of forming rubber articles from aqueous dis used in its broadest significance as including natpersions in which bubbles in the deposited rubber ural or artificial aqueous dispersions of India rubmaterial may be readily avoided, and in which her, or similar vegetable resins such as gutta uniformity in wall thickness and structure may percha or balata with or without the addition of 7 b obtained, aqueous dispersions or emulsions of rubber-like In my invention the surface on which the desubstances such as synthetic rubbers, mineral posit of rubber material is to be made is first rubbers or rubber substitutes such as factice or coated with a non-coagulating composition comrubber reclaim, or rubber waste or oils, for exprising one or more polyhydroxy compounds, or ample, rape oil or vulcanized oils or cellulose other derivatives, in admixture with a volatile esters or proteins, for example, casein. The dissolvent. The aqueous dispersion is then brought persions may be concentrated or compounded, or into contact with the thus treated surface to coat both compounded and concentrated. A comthe latter and the deposit or coating thus formed pounded concentrate such as described in Patent 30 i thereafter l t d, 1,846,164 is suitable. The compounding ingredi- The polyhydroxy compounds used in coating ents may comprise vulcanizing agents such as the surface are such as have a slight stabilizing Sulphur, Organic c l ators and reinforcing action on the dispersion. Polyhydric alcohols, agents Such as Whiting, Clay, barium p a or other derivatives, such as glycerol, glycol, dihthopone, 1? black, gas a k,'zi nc oxide or 35 ethylene glycol or alkyl ethers of these, such as 9 Vulcamte, colormg matters glycol monoethyl ether, are examples of suitable preservatlves Softeners;- polyhydroxy compounds, An example of carrying the invention into These polyhydroxy compounds may bemixed efiect is as follows:
with any suitable volatile solvent such as acetone, Example I 40 alcohol or ether.
AS an example of a noncoagulatmg composl' A non-coagulating composition suitable for the h h y P used according to the present production of thin rubber dipped goods from invention is a mixture of glycerme and alcohol. rubber latex, Such as finger cots, can be made as The glycerine appears to facilitate wetting by follows;
the aqueous dispersion aforesaid and also to act Parts by as a slight stabilizer, in this manner, apparently, weight preventing the coagulation of the deposit until Glycerine 5 the forces of the surface tension have compen- 95% alc hol 95 50 sated for any slight inequality of deposition. The alcohol while completely wetting the former, ap- This composition is then wiped over a former,
pears to act also as a quickly evaporating diluent for instance of glass, by means of a cloth so as for the glycerine, thereby enabling a very thin to produce a coating thereof. The thus coated application of the glycerine to be made uniformly. former is allowed to stand for about one minute The subsequent coagulation of the deposits on until the alcohol has evaporated. This is then dipped into a latex bath of 55-60% total solids of the following composition:
The former with the liquid film of latex mixing is then removed from the bath. On withdrawal the former is rotated so as to obviate variations in thickness of deposit, and is then carefully inverted and placed over'a jet of steam so that the former is internally heated.
The dried deposit is then suitably treated in any known manner, e. g., vulcanized in steam for ten minutes at 15 lbs. pressure per square inch.
Through the above invention a smooth, uniform deposit, free from bubbles, is obtained through the action of the glycerine or other polyhydroxy compound in causing the dispersion to wet the forming surface uniformly and to revent coagulation until the deposit will have had an opportunity to become uniformly distributed.
What I claim is- 1. A method for the production of articles from aqueous dispersions of rubber which comprises coating a supporting surface with a non-coagulating composition comprising polyhydroxy organic compounds in admixture with a volatile solvent, evaporating solvent from said coating, coating the thus treated supports with an aqueous dispersion of rubber, and coagulating the coating.
2. A process as in claim 1 in which the polyhydroxy compounds are polyhydric alcohols.
3. The process as claimed in claim 1 in which the volatile solvent is a member of the group consisting of acetone, alcohol and ether.
4. The method of claim 1 in which the noncoagulating composition is a mixture of glycerine and alcohol.
5. The process as claimed in claim 1 in which the supporting surface is internally heated.
GEOFFREY WILLIAM TBOBRIDGE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32796/31A GB383432A (en) | 1931-11-26 | 1931-11-26 | Improvements in or relating to the manufacture of articles of or containing rubber or similar material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1959556A true US1959556A (en) | 1934-05-22 |
Family
ID=10344099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US638185A Expired - Lifetime US1959556A (en) | 1931-11-26 | 1932-10-17 | Manufacture of rubber articles |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1959556A (en) |
| DE (1) | DE680517C (en) |
| FR (1) | FR744503A (en) |
| GB (1) | GB383432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525272A (en) * | 1947-02-05 | 1950-10-10 | Goodrich Co B F | Pen sac and method of making same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593748A (en) * | 1949-08-29 | 1952-04-22 | Jacob M Goldberg | Fishing reel |
-
0
- FR FR744503D patent/FR744503A/fr not_active Expired
-
1931
- 1931-11-26 GB GB32796/31A patent/GB383432A/en not_active Expired
-
1932
- 1932-06-30 DE DED63792D patent/DE680517C/en not_active Expired
- 1932-10-17 US US638185A patent/US1959556A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525272A (en) * | 1947-02-05 | 1950-10-10 | Goodrich Co B F | Pen sac and method of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE680517C (en) | 1939-08-30 |
| FR744503A (en) | 1933-04-21 |
| GB383432A (en) | 1932-11-17 |
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